Equilibrium studies of complex formation involving palladium(II)-(1,3-diaminopropane) and cyclobutane dicarboxylic acid, DNA units, amino acids or peptides Novel Chromium, Molybdenum, and Tungsten Complexes of 2-pyridylamidoxime Use of some natural oils as crude pipeline corrosion inhibitors in sodium hydroxide solutions Synthesis and Characterization of Some New Binary and Ternary Copper Complexes: X-Ray Crystal Structural of Dioxo Dinuclear Bipyridine Copper Complex